Vulnerability · Published Nov 3, 2026 · Assigned by VulnCheck
CVE-2026-121410FreeRDP before 3.32.2 Denial of Service via RDPGFX ALPHA WIRETOSURFACE_2
Medium 4.3
In plain English
A medium-severity security flaw in FreeRDP from FreeRDP. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
FreeRDP before 3.32.2 contains a denial of service vulnerability in the RDPGFX ALPHA WIRETOSURFACE_2 handler that fails to validate zero surface dimensions. A malicious RDP server can send a crafted WIRETOSURFACE_2 PDU with zero width and height, triggering an assertion or division by zero that terminates the client session.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | freerdp2 | no fix listed | DEBIAN-CVE-2026-121410 |
| Debian:13 | freerdp3 | no fix listed | DEBIAN-CVE-2026-121410 |
| Debian:14 | freerdp3 | 3.32.2+dfsg-1 | DEBIAN-CVE-2026-121410 |
| Ubuntu:22.04:LTS | freerdp2 | no fix listed | UBUNTU-CVE-2026-121410 |
| Ubuntu:24.04:LTS | freerdp3 | no fix listed | UBUNTU-CVE-2026-121410 |
| Ubuntu:26.04:LTS | freerdp3 | no fix listed | UBUNTU-CVE-2026-121410 |
| Ubuntu:26.10 | freerdp3 | no fix listed | UBUNTU-CVE-2026-121410 |
Affected products (as reported)
Weakness: CWE-369 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
References
- GitHub Security Advisory (GHSA-fqw6-jf2h-6fj6) vendor-advisory
- VulnCheck Advisory: FreeRDP before 3.32.2 Denial of Service via RDPGFX ALPHA WIRETOSURFACE_2 third-party-advisory